Organic Clay Breaker

Clay Breaker will improve and maintain the health of your garden plants. It is good with flowers, vegetables, trees, lawns, in the greenhouse and on the compost heap. Clay Breaker helps in two ways. It improves soil structure and it supplies calcium and sulphur (essential nutrients).

Clay Breaker is a natural, non-toxic mineral certified for use in organic production. Clay Breaker is not harmful to children or pets and even when applied at very high levels it will not damage your soil or plants. 

In new gardens the original topsoil is usually removed before building leaving only the subsoil clays. Although a thin layer of topsoil is sometimes put back on top this is usually not deep enough to be of much use. Also, the immediately underlying layer of subsoil will have been severely compacted by workers and vehicles. Even in established gardens, heavy (high clay) soils are commonly very compacted by foot traffic and do not drain well.

  • Better drainage
  • Reduced compaction
  • Less crusting
  • Easier working (eaiser to incorporate compost).


  • Organic Clay Breaker 25kg
  • Organic Clay Breaker 8kg

How much do I need?

Our volume calculator can help you to work out how may bags of the product you will need. You'll need to know:

  • Length of your garden box or area
  • Width of you garden box or area
  • How deep you're going to lay the product
  • Which product and bag sizes you want to use

go to volume calculator


How much do I need?

You'll need to know:

  • - length of your garden box or area
  • - width of your garden box or area
  • - how deep you're going with the product
  • - which product and bag size you want to use

All composts, garden mixes & lawn soils will settle when spread and watered so we recommend allowing for around 5-10% compaction when ordering

Conversion of 6 x 4ft trailer load to cubic metres:

1 x trailer load= 0.7 cubic metres
1 1/2 x trailer loads= 1 cubic metre
3 x trailer loads= 2 cubic metres
4 1/2 x trailer loads= 3 cubic metres

Volume Calculator

Amount Required

Error: Something went wrong calculating the volume. Please check the measurements you have entered.
Warning: This is quite a large volume, are you sure you have entered your measurements correctly and selected the right units?
Compaction allowance:  %
Recommended order volume:   
Calculated volume:   
Where to buy:
Organic Clay Breaker can be purchased from*
*Stores are indicative only. Please phone stores for confirmation of availability.